1986 Marshall 100 Lead Mosfet Troubleshooting

[g1]

I am getting 1.3v between TR4, TR5 base pins

How about resistance?

[Rkskaas]

I am getting 1.3v between TR4, TR5 base pins

How about resistance?

27.76k ohms

[Rkskaas]

I will order those resistors 330 ohm & 4.7k ohm. Schematics don't say, but what type of resistor should I be using "Carbon Film" or "Metal Film". Also what watts should I order those resistors in? The attached picture shows where these resistors have been mounted on another amp and I will do the same to mine.

330 ohm shows mounted on R29,R30
4.7k ohm shows mounted over D5

[g1]

1/4 or 1/2 watt in carbon film or metal film will be fine.
Check the dimensions, some of the modern parts are so tiny they can be difficult to work with in applications like this.